Powtawche Valerino is a guidance engineer who works for Aerodyne Industries at the NASA’s Marshall Space Flight Center, supporting the agency’s Space Launch System program.

The planet Mercury is seen in silhouette, low center, as it transits across the face of the Sun, Monday, Nov. 11, 2019.

The gantry arms close around the Soyuz rocket after it was raised into vertical position on the launch pad, Monday, Sept. 23, 2019 at the Baikonur Cosmodrome in Kazakhstan.

This image shows sedimentary rock and sand within Danielson Crater, an impact crater about 42 miles or 67 kilometers in diameter, located in the southwest Arabia Terra region of Mars.

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 61 crewmember Jessica Meir of NASA climbs aboard a Soyuz trainer during final crew qualification exams on Aug. 30.